Liquid-cooled battery plug-in box

Abstract

The utility model discloses a liquid-cooled battery plug-in box which comprises a box body which comprises a mounting table and a mounting cover arranged on the top surface of the mounting table, and a cooling cavity is formed in the mounting table; the cooling assembly comprises a water inlet connector and a water outlet connector which are arranged on one side of the mounting table and communicated with the cooling cavity, a flow guide plate is arranged in the cooling cavity, and a cooling medium entering the cooling cavity flows in an S shape under the guidance of the flow guide plate; according to the utility model, when a worker installs the battery module between the installation table and the installation cover and a cooling medium enters the cooling cavity through the water inlet interface to cool the battery module on the installation table, the cooling medium flows in the cooling cavity in an S shape until the cooling medium flows out from the water outlet interface, and the S-shaped flow improves the advancing path of the cooling medium in the cooling cavity; compared with the prior art, the cooling cavity prolongs the time of a cooling medium in the cooling cavity, improves the heat dissipation efficiency, has a better heat dissipation effect compared with air cooling heat dissipation, and is relatively simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of battery insertion boxes, in particular to a liquid-cooled battery insertion box. Background Art

[0002] The battery insertion box is an important part of the energy storage system. The lithium battery insertion box is a power solution integrating battery packs, battery management systems, insertion boxes and cooling systems, and is widely used in the fields of energy storage, electric vehicles, uninterruptible power supplies, etc.

[0003] The existing lithium battery insertion boxes usually adopt air-cooling heat dissipation technology. However, due to the poor thermal conductivity of air, the air-cooling heat dissipation efficiency is limited. In addition, a large heat dissipation area and a strong air flow are required for air-cooling heat dissipation to achieve an ideal heat dissipation effect. Therefore, this application specifically proposes a liquid-cooled battery insertion box that can improve the heat dissipation efficiency. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a liquid-cooled battery insertion box that can improve the heat dissipation efficiency.

[0005] To achieve the above purpose, the utility model provides a liquid-cooled battery insertion box, including:

[0006] A box body, including an installation table and an installation cover arranged on the top surface of the installation table. A cooling cavity is opened in the installation table. A space for placing battery modules is left between the installation table and the installation cover, and the installation cover is used to protect the battery modules;

[0007] A cooling component, including a water inlet interface and a water outlet interface arranged on one side of the installation table and communicated with the cooling cavity. A flow guide plate is arranged in the cooling cavity. Under the guidance of the flow guide plate, the cooling medium entering the cooling cavity flows in an "S" shape.

[0008] Further, a heat conduction plate is arranged between the top surface of the installation table and the battery module, and the heat conduction plate is in contact with the installation table surface.

[0009] Further, a plurality of load-bearing plates are distributed in the cooling cavity. The load-bearing plates are connected to the side of the cooling cavity corresponding to the battery module and the side of the cooling cavity opposite to the battery module, and the postures of the load-bearing plates are arranged along the flow direction of the cooling medium.

[0010] Further, a plurality of flow guide plates are arranged, dividing the cooling cavity into a plurality of flow guide channels. The flow guide channels are connected end to end and arranged in an "S" shape in the cooling cavity. A plurality of the load-bearing plates are arranged in each flow guide channel, and the plurality of load-bearing plates are arranged side by side in each flow guide channel and are parallel to the flow guide plate;

[0011] Communication ports that communicate with each other are provided at the head and tail of each diversion channel. The distance between the end portions of the plurality of load-bearing plates located at the communication ports and the corresponding side walls of the cooling chamber gradually decreases as the distance between the load-bearing plates and the communication ports increases.

[0012] Further, a first limiting groove in an "L" shape is formed at one end of the top surface of the mounting table close to the water inlet interface, and a plurality of second limiting grooves in an "L" shape are distributed on both sides of the top surface of the mounting table;

[0013] The mounting cover is provided with a disassembly component. The disassembly component includes a limiting strip arranged on the bottom surface of the mounting cover. The limiting strip is in an "L" shape and corresponds to the first limiting groove. A plurality of limiting blocks are distributed on both sides of the bottom surface of the mounting cover, and each limiting block is in an "L" shape and corresponds to each of the second limiting grooves one by one. When the mounting cover is arranged on the mounting table, the limiting strip and each limiting block are inserted into the corresponding limiting grooves to limit the mounting cover. The mounting cover is also provided with a limiting component. When the limiting strip and each limiting block are inserted into the corresponding limiting grooves, the limiting component is used to prevent the mounting cover from moving away from the limiting strip.

[0014] Further, a third limiting groove is formed on the bottom surface of the mounting table on the side away from the limiting strip;

[0015] The limiting component includes a telescopic block slidably arranged vertically on the mounting cover. The telescopic block is arranged at a position corresponding to the third limiting groove on the mounting cover. A fixing frame is also arranged above the telescopic block, and the fixing frame is arranged on the top surface of the mounting cover. A connecting ring is rotatably arranged on the top surface of the telescopic block. An elastic unit is arranged between the connecting ring and the fixing frame. The elastic unit applies a downward pressure to the telescopic block through the connecting ring. A rotating rod is rotatably penetrated through the fixing frame. One end of the rotating rod is connected to the top surface of the telescopic block. Convex blocks are arranged on both sides of the telescopic block. Two oppositely arranged inclined plates are also arranged on the mounting cover. Each inclined plate is in an arc shape and surrounds the telescopic block. The inclined surfaces of each inclined plate correspond to the rotation trajectories of the corresponding convex blocks. When the rotating rod rotates, the rotating rod drives the telescopic block to rotate with the center of the telescopic block as the rotation center, and the telescopic block drives each convex block to rotate and makes each convex block contact the inclined surface of the corresponding inclined plate.

[0016] Further, a sealing ring is also arranged on the bottom surface of the mounting cover. When the mounting cover is arranged on the mounting table, the sealing ring is used to seal the gap between the mounting cover and the mounting table;

[0017] Furthermore, a connection module is provided on the mounting cover. The connection module is used to connect with the battery module and external components, supply power to external devices, and charge the battery module.

[0018] The beneficial effects of the present utility model are embodied in:

[0019] In the present utility model, when the staff installs the battery module between the mounting table and the mounting cover, and the cooling medium enters the cooling cavity through the water inlet interface to cool the battery module on the mounting table, the cooling medium flows in an "S" shape in the cooling cavity until it flows out from the water outlet interface. The "S" shape flow increases the travel path of the cooling medium in the cooling cavity, prolongs the time of the cooling medium in the cooling cavity, improves the heat dissipation efficiency, has a better heat dissipation effect compared with air cooling, and the structure is relatively simple. Description of the Drawings

[0020] Figure 1 is a perspective view of the front of a liquid-cooled battery chassis according to the present utility model;

[0021] Figure 2 is a perspective view of the back of a liquid-cooled battery chassis according to the present utility model;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is a structural view of the mounting table;

[0024] Figure 5 is a first cross-sectional view of a liquid-cooled battery chassis according to the present utility model;

[0025] Figure 6 is a second cross-sectional view of a liquid-cooled battery chassis according to the present utility model;

[0026] Figure 7 is a third cross-sectional view of a liquid-cooled battery chassis according to the present utility model;

[0027] Figure 8 is Figure 5 an enlarged view of part B in

[0028] Figure 9 is a structural view of the load-bearing plate;

[0029] Figure 10 is a structural view of the mounting cover.

[0030] Description of the Reference Numerals:

[0031] 1. Box; 11. Mounting table; 111. First limiting groove; 112. Second limiting groove; 113. Third limiting groove; 12. Mounting cover; 13. Cooling chamber; 131. Communication port; 2. Cooling component; 21. Water inlet interface; 22. Water outlet interface; 23. Deflector plate; 24. Heat conducting plate; 3. Load-bearing plate; 4. Demountable component; 41. Limiting strip; 42. Limiting block; 43. Sealing ring; 44. Limiting member; 441. Telescopic block; 442. Fixed bracket; 443. Connecting ring; 444. Elastic unit; 445. Rotating rod; 446. Protrusion; 447. Inclined plate; 5. Connection module; 6. Battery module. Specific implementation

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0033] See Figures 1-10 .

[0034] The present invention discloses a liquid-cooled battery insertion box, including:

[0035] Box 1, including a mounting table 11 and a mounting cover 12 arranged on the top surface of the mounting table 11. A cooling chamber 13 is opened in the mounting table 11. A space for placing the battery module 6 is left between the mounting table 11 and the mounting cover 12, and the mounting cover 12 is used to protect the battery module 6;

[0036] Cooling component 2, including a water inlet interface 21 and a water outlet interface 22 arranged on one side of the mounting table 11 and communicating with the cooling chamber 13. A deflector plate 23 is arranged in the cooling chamber 13. Under the guidance of the deflector plate 23, the cooling medium entering the cooling chamber 13 flows in an "S" shape.

[0037] In specific implementation, the staff installs the battery module 6 between the mounting table 11 and the mounting cover 12. When the cooling medium enters the cooling chamber 13 through the water inlet interface 21 to cool the battery module 6 on the mounting table 11, the cooling medium flows in an "S" shape in the cooling chamber 13 until it flows out from the water outlet interface 22. The "S" shape flow improves the traveling path of the cooling medium in the cooling chamber 13, extends the time of the cooling medium in the cooling chamber 13, improves the heat dissipation efficiency, has a better heat dissipation effect compared with air-cooled heat dissipation, and the structure is relatively simple.

[0038] Preferably, the cooling medium can adopt water, coolant, etc. in the prior art.

[0039] In an embodiment, a heat conducting plate 24 is disposed between the top surface of the mounting table 11 and the battery module 6, and the heat conducting plate 24 is in surface contact with the mounting table 11.

[0040] Among them, the heat conducting plate 24 can be made of materials with good heat conduction efficiency such as aluminum alloy and copper. Such a design can transfer the local heat of the battery module 6 to the heat conducting plate 24. Since the heat conducting plate 24 has a large contact surface with the mounting table 11, the heat conducting plate 24 can quickly diffuse and transfer the local heat of the battery module 6 and exchange heat with the mounting table 11, avoiding heat accumulation and dissipating heat in time.

[0041] In an embodiment, a plurality of load-bearing plates 3 are distributed in the cooling chamber 13. The load-bearing plates 3 are connected to one side of the cooling chamber 13 corresponding to the battery module 6 and the side of the cooling chamber 13 opposite to the battery module 6, and the postures of the load-bearing plates 3 are arranged along the flowing direction of the cooling medium.

[0042] Such a design is because the battery module 6 is relatively heavy. When the battery module 6 is disposed on the mounting table 11, the mounting table 11 needs to bear a large pressure. The setting of the load-bearing plates 3 can improve the strength of the mounting table 11 and prevent the mounting table 11 from deforming. At the same time, since the load-bearing plates 3 are disposed in the cooling chamber 13 and connected to one side of the cooling chamber 13 corresponding to the battery module 6, the load-bearing plates 3 can also play a role similar to that of heat dissipation fins and enhance the heat dissipation capacity of the mounting table 11.

[0043] It should be noted that the load-bearing plates 3 can be made of materials with good heat conduction efficiency such as aluminum alloy.

[0044] In an embodiment, a plurality of flow guiding plates 23 are provided, dividing the cooling chamber 13 into a plurality of flow guiding channels. The flow guiding channels are arranged in an "S" shape with the head and tail connected in the cooling chamber 13. A plurality of load-bearing plates 3 are provided in each flow guiding channel. The plurality of load-bearing plates 3 are arranged side by side in each flow guiding channel and are parallel to the flow guiding plates 23.

[0045] Communication ports 131 that communicate with each other are provided at the head and tail of each flow guiding channel. The distance between the end of the plurality of load-bearing plates 3 located at the communication ports 131 and the corresponding side wall of the cooling chamber 13 gradually decreases as the distance between the load-bearing plates 3 and the communication ports 131 increases.

[0046] Such a design can reduce the flow resistance generated when the cooling medium passes through the communication ports 131 by the arrangement of the head and tail ends of the load-bearing plates 3, and reduce the energy consumption required to drive the cooling medium.

[0047] In an embodiment, a first limiting groove 111 in an "L" shape is formed at one end of the top surface of the mounting table 11 close to the water inlet interface 21, and a plurality of second limiting grooves 112 in an "L" shape are distributed on both sides of the top surface of the mounting table 11.

[0048] The mounting cover 12 is provided with a disassembly component 4. The disassembly component 4 includes a limiting strip 41 arranged on the bottom surface of the mounting cover 12. The limiting strip 41 is in an "L" shape and corresponds to the first limiting groove 111. A plurality of limiting blocks 42 are distributed on both sides of the bottom surface of the mounting cover 12, and each limiting block 42 is in an "L" shape and corresponds to each second limiting groove 112 one by one. When the mounting cover 12 is arranged on the mounting table 11, the limiting strip 41 and each limiting block 42 are inserted into the corresponding limiting grooves to limit the mounting cover 12. The mounting cover 12 is further provided with a limiting component 44. When the limiting strip 41 and each limiting block 42 are inserted into the corresponding limiting grooves, the limiting component 44 is used to prevent the mounting cover 12 from moving away from the limiting strip 41.

[0049] With such a design, after the battery module 6 is installed, the mounting cover 12 is placed on the top surface of the mounting table 11. At this time, the horizontal end of the limiting strip 41 is inserted into the first limiting groove 111, and the horizontal ends of each limiting block 42 are inserted into the corresponding second limiting grooves 112. At this time, the staff moves the mounting cover 12 towards the direction close to the first limiting groove 111, so that the horizontal ends of the limiting strip 41 and each limiting block 42 are inserted into the horizontal ends of the corresponding limiting grooves. The limiting strip 41 and each limiting block 42 prevent the mounting cover 12 from moving towards the direction close to the water inlet interface 21 and the two sides of the mounting cover 12. At this time, the limiting component 44 restricts the mounting cover 12 and prevents the mounting cover 12 from moving away from the first limiting groove 111. At this time, the mounting cover 12 is completely restricted and cannot move.

[0050] In an embodiment, a third limiting groove 113 is formed on the bottom surface of the mounting table 11 on the side away from the limiting strip 41;

[0051] The limiting component 44 includes a telescopic block 441 vertically and slidably arranged on the mounting cover 12. The telescopic block 441 is arranged at the position of the mounting cover 12 corresponding to the third limiting groove 113. A fixing frame 442 is further arranged above the telescopic block 441. The fixing frame 442 is arranged on the top surface of the mounting cover 12. A connecting ring 443 is rotatably arranged on the top surface of the telescopic block 441. An elastic unit 444 is arranged between the connecting ring 443 and the fixing frame 442. The elastic unit 444 applies a downward pressure to the telescopic block 441 through the connecting ring 443. A rotating rod 445 is rotatably penetrated through the fixing frame 442. One end of the rotating rod 445 is connected to the top surface of the telescopic block 441. Convex blocks 446 are arranged on both sides of the telescopic block 441. Two oppositely arranged inclined plates 447 are further arranged on the mounting cover 12. Each inclined plate 447 is in an arc shape and surrounds the telescopic block 441. The inclined surface of each inclined plate 447 corresponds to the rotation track of the corresponding convex block 446. When the rotating rod 445 rotates, the rotating rod 445 drives the telescopic block 441 to rotate with the center of the telescopic block 441 as the rotation center. The telescopic block 441 drives each convex block 446 to rotate and makes each convex block 446 contact with the inclined surface of the corresponding inclined plate 447.

[0052] With such a design, when the mounting cover 12 is placed on the top surface of the mounting table 11, the limiting strips 41 and the respective limiting blocks 42 are inserted into the corresponding limiting grooves. At this time, the bottom surface of the telescopic block 441 contacts the mounting cover 12 and compresses the elastic unit 444 until the mounting cover 12 fits with the mounting table 11. Then, the mounting cover 12 is moved in the direction close to the first limiting groove 111, and the telescopic block 441 moves together with the mounting cover 12 until the telescopic block 441 moves above the third limiting groove 113. At this time, the elastic unit 444 drives the telescopic block 441 to slide downward so that the telescopic block 441 is inserted into the third limiting groove 113. At this time, the respective limiting strips 41 and the respective limiting blocks 42 are inserted into the transverse ends of the corresponding limiting grooves, and the mounting cover 12 is restricted and cannot move. When it is necessary to release the restraint of the telescopic block 441, the rotating rod 445 is rotated. The telescopic block 441 drives the respective convex blocks 446 to rotate and makes the respective convex blocks 446 contact the inclined surfaces of the corresponding inclined plates 447. As the rotating rod 445 continues to rotate, the respective convex blocks 446 move along the inclined surface trajectories of the corresponding inclined plates 447 and drive the telescopic block 441 to rise until the telescopic block 441 exits the third limiting groove 113 (the telescopic block 441 can rotate in the third limiting groove 113). Then, the mounting cover 12 is moved in the direction away from the limiting strip 41. At this time, the respective limiting grooves no longer restrict the corresponding limiting blocks 42 and the limiting strips 41.

[0053] Preferably, the elastic unit 444 can adopt a spring in the prior art.

[0054] In one embodiment, a sealing ring 43 is further provided on the bottom surface of the mounting cover 12. When the mounting cover 12 is arranged on the mounting table 11, the sealing ring 43 is used to seal the gap between the mounting cover 12 and the mounting table 11.

[0055] With such a design, when the respective limiting strips 41 and the respective limiting blocks 42 are inserted into the corresponding limiting grooves, the sealing ring 43 seals the gap between the mounting cover 12 and the mounting table 11, making the battery module 6 in a sealed environment.

[0056] In one embodiment, a connection module 5 is provided on the mounting cover 12. The connection module 5 is used to connect with the battery module 6 and external components, used to supply power to external devices, and charge the battery module 6.

[0057] It should be noted that the connection module 5 is common knowledge to those skilled in the art, so the structure thereof will not be described in detail here.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. In addition, "a plurality of", "multiple groups", and "several" mean more than two.

Claims

1. A liquid-cooled battery cassette, characterized in that, Comprising: A box body (1), including a mounting table (11) and a mounting cover (12) arranged on the top surface of the mounting table (11). A cooling cavity (13) is formed in the mounting table (11). A space for placing the battery module (6) is left between the mounting table (11) and the mounting cover (12), and the mounting cover (12) is used to protect the battery module (6); A cooling assembly (2), including a water inlet interface (21) and a water outlet interface (22) arranged on one side of the mounting table (11) and communicated with the cooling cavity (13). A flow guide plate (23) is arranged in the cooling cavity (13). Under the guidance of the flow guide plate (23), the cooling medium entering the cooling cavity (13) flows in an "S" shape.

2. The liquid-cooled battery chassis according to claim 1, characterized in that, A heat conducting plate (24) is arranged between the top surface of the mounting table (11) and the battery module (6), and the heat conducting plate (24) is in surface contact with the mounting table (11).

3. The liquid-cooled battery plug-in box according to claim 1, wherein, A plurality of load-bearing plates (3) are distributed in the cooling cavity (13). The load-bearing plates (3) are connected to the side of the cooling cavity (13) corresponding to the battery module (6) and the side of the cooling cavity (13) opposite to the battery module (6). The postures of the load-bearing plates (3) are arranged along the flowing direction of the cooling medium.

4. The liquid-cooled battery cassette according to claim 3, characterized in that, A plurality of flow guide plates (23) are arranged, dividing the cooling cavity (13) into a plurality of flow guide channels. The flow guide channels are connected end to end and arranged in an "S" shape in the cooling cavity (13). A plurality of the load-bearing plates (3) are arranged in each flow guide channel. The plurality of load-bearing plates (3) are arranged side by side in each flow guide channel and are parallel to the flow guide plate (23); Communication ports (131) communicating with each other are arranged at the head and tail of each flow guide channel. The distance between the end of the plurality of load-bearing plates (3) located at the communication port (131) and the corresponding side wall of the cooling cavity (13) gradually decreases as the distance between the load-bearing plate (3) and the communication port (131) increases.

5. A liquid-cooled battery cassette according to claim 1, wherein A first limit groove (111) in an "L" shape is formed at one end of the top surface of the mounting table (11) close to the water inlet interface (21), and a plurality of second limit grooves (112) in an "L" shape are distributed on both sides of the top surface of the mounting table (11); The mounting cover (12) is provided with a disassembly component (4). The disassembly component (4) includes a limiting strip (41) arranged on the bottom surface of the mounting cover (12). The limiting strip (41) is in an "L" shape and corresponds to the first limiting groove (111). A plurality of limiting blocks (42) are distributed on both sides of the bottom surface of the mounting cover (12), and each of the limiting blocks (42) is in an "L" shape and corresponds to each of the second limiting grooves (112) one by one. When the mounting cover (12) is arranged on the mounting table (11), the limiting strip (41) and each of the limiting blocks (42) are inserted into the corresponding limiting grooves to limit the mounting cover (12). The mounting cover (12) is further provided with a limiting component (44). When the limiting strip (41) and each of the limiting blocks (42) are inserted into the corresponding limiting grooves, the limiting component (44) is used to prevent the mounting cover (12) from moving away from the limiting strip (41).

6. The liquid-cooled battery cassette according to claim 5, wherein, A third limiting groove (113) is formed in the bottom surface of the mounting table (11) on the side away from the limiting strip (41); The limiting component (44) includes a telescopic block (441) vertically and slidably arranged on the mounting cover (12). The telescopic block (441) is arranged at a position corresponding to the third limiting groove (113) on the mounting cover (12). A fixing frame (442) is further arranged above the telescopic block (441). The fixing frame (442) is arranged on the top surface of the mounting cover (12). A connecting ring (443) is rotatably arranged on the top surface of the telescopic block (441). An elastic unit (444) is arranged between the connecting ring (443) and the fixing frame (442). The elastic unit (444) applies a downward pressure to the telescopic block (441) through the connecting ring (443). A rotating rod (445) is rotatably penetrated through the fixing frame (442). One end of the rotating rod (445) is connected to the top surface of the telescopic block (441). Convex blocks (446) are arranged on both sides of the telescopic block (441). Two oppositely arranged inclined plates (447) are further arranged on the mounting cover (12). Each of the inclined plates (447) is in an arc shape and surrounds the telescopic block (441). The inclined surface of each of the inclined plates (447) corresponds to the rotation trajectory of the corresponding convex block (446). When the rotating rod (445) rotates, the rotating rod (445) drives the telescopic block (441) to rotate around the center of the telescopic block (441). The telescopic block (441) drives each of the convex blocks (446) to rotate and makes each of the convex blocks (446) contact the inclined surface of the corresponding inclined plate (447).

7. The liquid-cooled battery cassette according to claim 1, characterized in that, A sealing ring (43) is further arranged on the bottom surface of the mounting cover (12). When the mounting cover (12) is arranged on the mounting table (11), the sealing ring (43) is used to seal the gap between the mounting cover (12) and the mounting table (11).

8. A liquid-cooled battery cassette according to claim 1, wherein, The mounting cover (12) is provided with a connection module (5), and the connection module (5) is used for connecting with the battery module (6) and external components, for supplying power to external devices, and for charging the battery module (6).

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